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213230990038 = 211171912985007
BaseRepresentation
bin1100011010010110001…
…1101011001011010110
3202101101102201121201111
43012211203223023112
511443144113140123
6241542412045234
721256030336663
oct3064543531326
9671342647644
10213230990038
1182481375910
12353aa76381a
1317152508971
14a46b3b8a6a
15582ed0290d
hex31a58eb2d6

213230990038 has 32 divisors (see below), whose sum is σ = 371382755328. Its totient is φ = 90744182400.

The previous prime is 213230989969. The next prime is 213230990041. The reversal of 213230990038 is 830099032312.

It is a happy number.

It is a super-2 number, since 2×2132309900382 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1421070 + ... + 1563937.

It is an arithmetic number, because the mean of its divisors is an integer number (11605711104).

Almost surely, 2213230990038 is an apocalyptic number.

213230990038 is a deficient number, since it is larger than the sum of its proper divisors (158151765290).

213230990038 is a wasteful number, since it uses less digits than its factorization.

213230990038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2985228.

The product of its (nonzero) digits is 69984, while the sum is 40.

The spelling of 213230990038 in words is "two hundred thirteen billion, two hundred thirty million, nine hundred ninety thousand, thirty-eight".

Divisors: 1 2 11 17 22 34 187 191 374 382 2101 3247 4202 6494 35717 71434 2985007 5970014 32835077 50745119 65670154 101490238 558196309 570136337 1116392618 1140272674 6271499707 9692317729 12542999414 19384635458 106615495019 213230990038